[Intro]
Change, difference, or variation
(Strange indifference to our situation)
[Bridge]
Taking shelter
(From your delta)
Expressing dynamic processes
(As our condition is….)
[Refrain]
Change, difference, or variation
(Strange indifference to our situation)
[Bridge]
Taking shelter
(From your delta)
Expressing dynamic processes
(As our condition is….)
Run to hide my hide
(Save my inside)
[Refrain]
Change, difference, or variation
(Strange indifference to our situation)
[Outro]
Change, difference, or variation
(Strange indifference to our situation)
A SCIENCE NOTE
The delta symbol (Δ \ Delta in science is widely used to represent change or difference in a quantity. Its meaning depends on the context in which it appears. Here are some of its common uses across various scientific disciplines:
1. Mathematics
- Δx\Delta x: The change or difference in the variable xx (e.g., Δx=x2−x1\Delta x = x_2 – x_1).
- It may also represent a finite difference in calculus.
2. Physics
- Δv\Delta v: Change in velocity.
- ΔE\Delta E: Change in energy.
- Δt\Delta t: Change in time.
- ΔT\Delta T: Temperature change.
- In thermodynamics, ΔS\Delta S often denotes the change in entropy.
3. Chemistry
- ΔH\Delta H: Change in enthalpy (heat content).
- ΔG\Delta G: Change in Gibbs free energy.
- Δ\Delta: Sometimes indicates a reaction carried out under heat (e.g., Δ over a reaction arrow\Delta \text{ over a reaction arrow}).
4. Biology
- Δ\Delta: Often used in genetics to denote a deletion mutation (e.g., ΔF508\Delta F508 for a specific mutation in the CFTR gene).
- Also used to indicate change in a population or variable in ecological studies.
5. Engineering
- Represents differences or changes in engineering variables (e.g., ΔP\Delta P for pressure change).
- In control systems, Δ\Delta might represent small changes or perturbations.
6. General Science
- Indicates a shift or transformation in experimental data or system states.
CLIMATE CHANGE
In the 1990s, we first hypothesized the non-linear acceleration of climate change. By the early 2000s, this hypothesis had evolved into established climate theory, now widely recognized as scientific fact. My lab partner, a Doctor of Physics from Ohio State, and I collaborated to provide key evidence supporting this theory. Over the years, we have observed a dramatic reduction in the doubling time of climate change impacts — the rate at which these effects intensify. Initially, the doubling time was approximately 100 years, but it has since decreased to 10 years and, more recently, to just 2 years. This trend implies that the damage caused by climate change today is double what it was two years ago. In two years, it could be four times worse; in four years, eight times worse; and within a decade, potentially 64 times worse. These projections are conservative, assuming the doubling period does not continue to shrink further. Alarmingly, this rapid acceleration does not appear to be an anomaly. If this trajectory persists, the consequences will likely be far more catastrophic than previously anticipated.
* Our climate model employs chaos theory to comprehensively consider human impacts and projects a potential global average temperature increase of 9℃ above pre-industrial levels.